baber/WOPTO huggingface dataset:
Patent GB-1165803-A (GB)
Title: Improvements in and relating to Transformers and Static Converters
IPC: H02M7/757
Filed: 1967-01-24
Abstract: 1,165,803. Converting circuits for voltage changing systems. MOBELEC S.A. HOLDING. 24 Jan., 1967 [14 Sept., 1966], No. 3550/67. Headings H2F and H2H. [Also in Division H3] Apparatus for supplying alternating or direct voltages from either an alternating or direct voltage source comprises a transformer 1, having a tapped primary winding P and multiple secondary windings S, associated with a controlled rectifier bridge 4 and an inverter comprising an oscillator 5, the selection of the mode of operation of the apparatus and the voltage values being effected by way of switches 2, 3. The rectifier bridge 4 comprises a series of diodes D 1 -D 8  and two controlled rectifiers 14, 15, the output of which bridge is smoothed by resistor R 2  and capacitor C 2 . The bridge is supplied from the tapped secondary winding F and the control voltages for the rectifiers 14, 15 are obtained from secondary windings D, E by way of a ganged potentiometer R 5 , R 6 . The oscillating circuit 5 of the inverter comprises transistors T 1 -T 4  and is supplied from a D.C. source 16, the output from the oscillator 5 being fed to the winding F on the transformer 1 and the bases of the transistors are controllably connected to the winding H. Overload protection of the oscillator 5 is provided by a capacitor C 6  which capacitor also effects the starting of the oscillator.
Patent GB-975613-A (GB)
Title: Improvements in or relating to machines for making paper,paper-board or similar fibrous products
Inventor: ATTWOOD BRIAN WILLIAM
IPC: D21F9/00
Filed: 1963-01-30
Abstract: 975,613. Paper-making apparatus. ST. ANNE'S BOARD MILLS CO. Ltd. Jan. 16, 1964 [Jan. 30,1963], No. 3744/63. Heading D2A. In a Fourdrinier paper-making machine of the type having pressure applying means-for example wire 5 and roll 7-above wire 2, excess stock is removed from in front of roll 7 by means 12. As shown the means 12 comprise a suction channel directed towards roll 7, but may comprise a scoop, possibly aided by suction, facing the headbox, or deckle boards on each side of wire 2 and having a line of holes through which excess pulp passes to be returned, directly or indirectly, to the headbox. Blade 10 removes the water from inside the wire 5. To form a multi-ply board, more than one headbox 1 and wire 5 &c. are disposed above wire 2.
Patent GB-104047-A (GB)
Title: Improvements in Inverted Incandescent Bye-pass Gas Burners.
Inventor: KERSHAW HAROLD
IPC: F23Q9/00
Filed: 1916-03-15
Abstract: 104,047. Kershaw, H. March 15, 1916. Pilot jets.-The inverted burner tube carrying the pilot-jet pipe is detachably connected to the gas nipple in such a manner that the removal of the burner closes the supply passage to the pilot-jet pipe. An annular conical valve f, Fig. 3, is arranged between a conical seating on the enlarged end p of the burner tube g and a conical seating on the gas-supply fitting, and is retained in position by lock-nuts w, the rotary movement of the valve being limited by one or more stops y engaging recesses therein. The by-pass tube, which extends down the centre or along the side of the burner tube, is attached to the enlarged end of the burner tube, and communicates through a hole in the valve f with a by-pass passage when the burner tube is in position. The burner tube is secured to the gas-supply fitting by projections q on the burner tube engaging notches r in the gas-supply fitting, or by springs t, Fig. 7, on the gas-supply fitting engaging notches s in the burner tube. Projections n, Fig. 3, on the burner tube engage recesses in the valve, so that valve is turned to open or close the by-pass passage according as the burner tube is turned to secure it to the gas-supply fitting or to detach it.
Patent GB-777628-A (GB)
Title: Manufacture of glycol esters of terephthalic acid and polyesters thereof
Inventor: MUNRO NEIL
IPC: C08G63/183
Filed: 1955-02-09
Abstract: Bis-glycol terephthalates, prepared by esterifying terephthalic acid with a glycol of the series HO(CH2)nOH, wherein n is greater than 1 but not exceeding 10, under superatmospheric pressure and at a temperature higher than the normal boiling-point of the glycol (see Group IV (b)), may be polycondensed by heating under reduced pressure with antimony oxide as catalyst to give polyglycol terephthalates. Specification 578,079, [Group IV], is referred to.ALSO:Terephthalic acid is esterified with a glycol of the series HO(CH2)nOH, where n is greater than 1 but not exceeding 10, by esterifying under superatmospheric pressure and at a temperature above the normal boiling point of the glycol used.  The polymethylene glycol terephthalates formed may be polycondensed to form highly polymeric polymethylene terephthalates (see Group IV (a)).  Small amounts of alkali may be added to the glycol.  The process may be carried out in a batch-wise, semi-continuous or continuous manner.  In examples: (1) ethylene glycol and terephthalic acid are heated together under pressure in an autoclave, steam being bled off to maintain a constant pressure; (2) as in (1) but using 1 : 4-butanediol together with a small amount of sodium hydroxide.  Specification 578,079, [Group IV], is referred to.
Patent GB-1167613-A (GB)
Title: Heterocyclic Derivatives of Triphenylethylenes, Triphenylethanes and Triphenylethanols including Salts and Derivatives Thereof
Inventor: ROBERTS EDWARD MCCREERY
IPC: C07D211/02
Filed: 1967-01-25
Abstract: 1,167,613. Heterocyclic derivatives of triphenylethylenes, triphenylethanes and triphenylethanols. RICHARDSON-MERRELL Inc. 25 Jan., 1967, No. 3834/67. Heading C2C. Novel therapeutically active compounds I, II and III (including acid addition salts, quaternary ammonium salts and N-alkyl-N-oxides thereof) wherein R and R<SP>1</SP> are each H, Cl or MeO, Z is pyridyl or a partially or completely saturated pyridyl ring which is attached to Y through a ring carbon atom, the nitrogen of the reduced pyridyl ring bearing H or C 1-4  alkyl, andYsignifies, in Formula (I) -CHOR-, -CHOH.CH 2 - (III) -CHOH- or -CHOH.CH 2 - and in which the carbon bearing oxygen is always attached to the phenyl ring, are prepared by reacting a nitrile IV with an organometallic compound containing the pyridine or piperidine nucleus to give a compound II; compounds I are obtained by hydrogenating corresponding compounds II and compounds III are prepared from compounds II utilizing hydroboration and subsequent oxidative hydrolysis. Standard methods are used, usually among compounds to -CHOH-, for introducing an N-methyl group and for hydrogenating the pyridine nucleus; tertiary alcohol groups may be formed by alkylative reduction. 1 - [p - (#,# - Diphenylvinyl) phenyl - 2 - (1- methyl - 2 - pyridino) - ethenolate is obtained by treating 1,1 - diphenyl - 2 - [p - (2 - pyridylacetyl) - phenyl] - ethylene methiodide with aqueous sodium hydroxide.
Patent GB-490052-A (GB)
Title: Apparatus for measuring and recording very short intervals of time
IPC: G02B5/30
Filed: 1937-02-10
Abstract: 490,052. Light-valves. TAWIL, E. P. Feb. 10, 1937, No. 3988. Convention date, Feb. 21, 1936. [Class 40 (iii)] A time scale is photographically marked on a moving record strip 10 by light passing through a polarizer 3, quartz crystals 4, 6 and a polarizer 7 crossed with respect to the first polarizer 3. The crystals 4, 6 are also relatively crossed and the crystal 4 is maintained in oscillation at constant frequency by the piezoelectric effect.
Patent GB-577875-A (GB)
Title: The method of stabilizing a plastic composition comprising ethyl cellulose
IPC: C08K5/13
Filed: 1943-03-11
Abstract: Ethyl cellulose plastic compositions, suitable for the manufacture of moulded articles, films, lacquers or varnishes, are rendered stable to the effects of heat, ultra-violet light, and outdoor weathering by incorporating therein one or more phenols with a carbon linkage para-substituent and an oxygen linkage ortho-substituent.  Suitable phenolic compounds are eugenol, vanillin, vanillyl alcohol, syringic acid, gallic acid, para-tertiary-butyl-catechol, benzyl catechol, hexyl catechol, protocatechuic acid and esters of syringic, gallic and protocatechuic acids.  Plasticisers such as tributyl phosphate, tricresylphosphate, triphenylphosphate, dimethyl phthalate, diethyl phthalate, dibutyl phthalate, diamyl phthalate, diphenyl phthalate, vegetable oil fatty acids, fatty alcohols such as lauryl alcohol, vegetable oils such as linseed oil, and resins such as wood rosin, dammar, cumar, as well as fillers, pigments and colouring matter may be added to the composition. Specifications 431,964 and 440,364 are referred to.
Patent GB-1507541-A (GB)
Title: Indicating instruments
IPC: G12B11/02
Filed: 1975-01-30
Abstract: 1507541 Indicating apparatus BPL (INSTRUMENTS) Ltd [trading as BRITISH PHYSICAL LABORATORIES] 28 Jan 1976 [30 Jan 1975] 4075/75 Heading G1J An instrument scale comprises a metal plate 5 having a reflective surface which is covered by an opaque layer 6 except for a predetermined strip 8 which acts as a mirror, and scale markings 10 on the layer 6 clear of the strip 8. The mirror strip helps to avoid parallax errors when reading the instrument. The plate may be of polished metal, or dull metal with a reflective coating. The opaque layer may be of paint applied through a mask or by silk screen printing. The scale markings may be applied by silk screen or litho printing. If a polished metal plate is used, it may be coated with lacquer or a thin transparent plastics sheet before the opaque layer 6 is applied.
Patent GB-162824-A (GB)
Title: Improvements in the manufacture of printed musical scores
IPC: G10G1/00
Filed: 1920-05-21
Abstract: 162,824. Hargreaves, G. de la P. May 21, 1920. Drawings to Specification. Tabs.-In order to facilitate turning-over the leaves of music or other books, rectangular-shaped pieces, increasing in length, are cut out of successive pages, and are reinforced by strips of linen &c. Instead of the sides, the top and bottom edges of the pages may be similarly treated. Coloured tabs may be used to differentiate one series of such steps from the succeeding series in the case of books containing a large number of pages.
Patent GB-1115854-A (GB)
Title: Method of and apparatus for the production of articles of light weight concrete from light weight concrete in a plastic state
IPC: B28B1/50
Filed: 1966-01-31
Abstract: 1,115,854. Gripping and lifting objects. FABRIEK VAN BOUWMATERIALEN LOEVESTEIN N.V. 31 Jan., 1966 [3 Feb., 1965], No. 4264/66. Heading B8H. [Also in Division B5] The subject-matter of this Specification is similar to that of Specification 1,115,853 but the claims and description relate to the transferring device without suction means.
Patent GB-233081-A (GB)
Title: Improvements in or relating to printing machines
IPC: B41F3/20
Filed: 1924-02-20
Abstract: 233,081. Holmes, A., Holmes, A. H., and Holmes, F., (trading as Holmes & Co.). Feb. 20, 1924. Cylinder machines.-A cylinder machine. of the kind in which an impression cylinder or cylinders and inking-rollers are carried by brackets or arms. on rotating frames and are moved around segmental tracks 3 and over a vertical bed 4 fitted with an adjustable type-bed 5, is constructed with an impression cylinder 9 fitted with grippers for taking the registered sheets from a feed-board 24, and after the sheet has been moved over the type bed it is transferred to grippers 25 on endless chains, which deliver the printed sheets to a receptacle 34 in such a manner that the operator can see the printed sheet immediately it leaves the forme and throughout the delivery. The cylinder is rotated as it is carried around by means of gear wheels engaging chains or racks 7 fitted to the segmental tracks 3, and the frames carrying the impression and inking-rollers are mounted on fixed tubular bearings 2 fixed to the main frames 1 and are driven by direct gearing from the main-shaft 17. Inking-apparatus.-The forme is inked by rollers 40 mounted to slide in radial slots 46, Fig. 1, in the revolving frames. The walls 40 are pressed towards the forme by springs 43, levers 44, and links 45, and receive their ink from a distributing-roller 50 driven from the shaft 17 and having an axial reciprocating movement. The rollers 40 are guided by a fixed cam 48, which is cut away to permit engagement of the rollers 40 with the roller 50. The roller 50 is supplied by a roller 62 carried by a spring plate 61 on rotating arms 60, the roller 62 itself being supplied from a ductor roller 52 driven by chain gearing from the shaft 55 on which the arms 60 are mounted. The shaft 55 is driven direct from the main rotating frame. Tripping-arrangements.-The printing pressure of the cylinder 9 on the forme is controlled by adjustable bars 20 which engage rollers on the shaft of the cylinder. The type-bed 4 is normally kept in printing position by cams 64 on vertical shafts 65 which move the bed against the action of springs 73. The shafts 65 can be moved to throw the bed out of printing position by a handoperated cam 67 which can be made to engage a groove in a bar 66 connected by lever-and-link mechanism to the shafts 65.
Patent GB-895402-A (GB)
Title: Improvements in or relating to the preparation of ammonium para-tungstate
IPC: C01G41/00
Filed: 1960-02-08
Abstract: Ammonium para-tungstate is prepared from an aqueous acidic tungsten-containing solution by extracting the tungsten values with a water-immiscible amine extractant and stripping the tungsten values from the amine phase by precipitation as ammonium para-tungstate with aqueous ammonia solution.  The initial tungsten-containing solution may be derived from attacking wolframite or with aqueous caustic soda, precipitating the tungsten as calcium tungstate by adding calcium chloride and taking up in a mineral acid such as hydrochloric acid; alternatively an ore such as scheelite may be directly treated with a strong mineral acid to form the initial tungsten-containing solution.  The amine extractants may be aliphatic or aromatic, especially secondary or tertiary amines containing 8 to 22 carbon atoms.  Amines specified are tri-isoctyl amine, bis(1-isobutyl-3,5-dimethyl hexyl) amine, di (3, 5, 7-trimethyloctyl) amine and 6-benzylamino-3, 9-diethyltridecane as well as amines of the general formulae R R1 CH-NH-CH2-C6H5 where R and R1 are C7 to C11 alkyl groups, R1-NH-C12H25 and R1NH-C12H23 where R1 is an aliphatic group containing a tertiary carbon atom which has three alkyl groups totalling 11 to 14 carbon atoms and which is attached to the nitrogen atom.  The amines are normally employed in a solvent such as diisobutyl ketone or ethyl hexanol or kerosene.  The aqueous ammonia employed for stripping preferably has a pH from 7 to 14. Any molybdenum contaminant is extracted from the organic solvent phase into the aqueous filtrate remaining after the ammonium para-tungstate precipitate has been removed.  The aqueous filtrate may be recycled together with the addition of sufficient ammonia, but if the molybdenum concentration is appreciable a portion of the solution is bled off.  Alternatively the aqueous filtrate containing molybdenum and residual ammonium para-tungstate may be acidified to precipitate a tungstic acid containing molybdenum contaminant.
Patent GB-470274-A (GB)
Title: Improvements in means for supporting pictures, prints and the like
IPC: A47G1/16
Filed: 1936-02-13
Abstract: 470,274. Hanging pictures on walls. MEIKLE, J. A., ANDREWS, C., and SAGE & CO., Ltd., F. Feb. 13, 1936, No. 4402. [Class 52 (iv)] Pictures are carried by supports 2 movable in a guideway in a supporting rail 6, a section 12 of which is hinged or removable to give access to the guideway and is provided with a latch 14 or other retaining means.
Patent GB-659860-A (GB)
Title: Improvements in kinematograph intermittent film feed projectors
IPC: G03B1/22
Filed: 1947-09-09
Abstract: 659,860. Kinematograph projectors. WEISSBRODT, J., and BROIDO, J. J. Sept. 9, 1947, No. 4470/50. Convention date, Dec. 31, 1946. Divided out of 659,815. [Class 97 (i)] In a projector of the kind described in the parent Specification, the film is driven intermittently through the film gate by a mechanism which comprises a carriage 65 disposed parallel to the plane of the film and carrying claw pins 67 which extend perpendicular to the carriage. This carriage includes an aperture 83 bounded on one side by a resilient portion 75 having therein an elongated slot 66 through which passes a fixed spindle. Another aperture 84 in the carriage accommodates the usual triangular cam (not shown), which is mounted on the same shaft 26 as the shutter 32, constantly engages hard steel blades 68 and 69 at opposite sides of aperture 84, and serves to reciprocate the claw pins 67 along the film path so as to move the film intermittently through one frame. The projector is characterized in that engagement of the claw pins with the film perforations is effected by two bosses 77 and 77a on the shutter 32. These bosses are concentric with the shutter carrying shaft 26, the middle portion of each boss is of the same constant height and the end portions of each boss are inclined to the plane of the shutter. Once per revolution of the shutter 32, the bosses 77, 77a respectively co-operate with projections 78, 79 on the carriage 65 to move the claw pins 67 into the film perforations against the action of the resilient part 75, which moves the claw pins out of the perforations when the bosses have passed the projections.
Patent GB-1216983-A (GB)
Title: Nuclear reactor pressure vessel
Inventor: SHAW JAMES WILLIAM WESTGARTH
IPC: F28F9/02
Filed: 1967-06-21
Abstract: 1,216,983. Reactor pressure vessels. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 13 Sept., 1968 [21 June, 1967; 29 Jan., 1968], Nos. 28745/67 and 4483/68. Heading G6C. In a gas-cooled nuclear reactor, contained in a pre-stressed concrete pressure vessel, steamgenerating heat exchangers 5 are mounted in bores in the concrete 3. The water inlet, steam outlet and reheat steam headers 6, 7 and 8 are mounted on the dome 4 and splined disc 12 which are supported on the collar 1. The latter is fixed in the concrete by the flanges 2. The disc 12 is urged against the annular seat 11 by the segmented ring 19 which engages the splines 10. Thermal expansion sleeves 9 are fitted to headers 7, 8. In a modification, to prevent leakage past the splines a shroud is welded between the disc and collar.
Patent GB-1207263-A (GB)
Title: An automatic ticket gate
IPC: G07B15/00
Filed: 1968-01-29
Abstract: 1,207,263. Automatic ticket gate. TATEISI ELECTRONICS CO. 29 Jan., 1968 [7 Feb., 1967], No. 4509/68. Heading G4T. An automatic ticket gate capable of accepting a plurality of passengers in succession consists of means for memorizing the validity of inserted tickets to control the operation on the gate and means for detecting the passage of ticket holders through the gate so as to erase the corresponding stored information. The ticket gate is substantially as described in Specification 1,198,718. A validity signal is applied at A 2  to set a flip-flop 31, Fig. 4. AND gate 32 is opened by the set output from flip-flop 31 and a signal A 1  generated when the ticket is removed from the gate to pulse a binary counter 33. The counter output is applied to flip-flops 37 and 47 in turn, which are set to indicate the receipt of a valid ticket. The set output A 4  controls operation of a turnstile. NOT gate 39 resets the flip-flop 31 when the signal A 1  has disappeared. Movement of the ticket holder through the gate operates a photo-electric cell or microswitch to generate a signal A 3 , stepping a binary counter 42 resetting the flip-flops 37, 47. In an alternative embodiment, the gate is adapted to memorize the validity of a maximum of four tickets at a time, Fig. 6. On insertion of a ticket a signal is produced on line L 2  to step a counter 70 applying a signal to AND elements 71-74 in turn. If the ticket is valid, a signal is produced on line L 1  to set a corresponding flip-flop 75-78 and the set output applied as an input to a corresponding INHIBIT element 79-82. Passenger detectors 65 and 66 apply inputs to the INHIBIT elements 79-82 in turn by means of stepping counter 83 and in the absence of an inhibit input (i.e. an invalid ticket) set flip-flop 97 to close the mornally open passageway. In addition, the passenger detectors apply inputs, to AND gates 84-87 in turn to reset the flip-flops 75-78. A manually operable button 102 resets the circuit.
Patent GB-1380344-A (GB)
Title: Bayonet catch cover
IPC: B60K15/04
Filed: 1972-02-01
Abstract: 1380344 Bayonet closure BLAU KG FABRIK FUER KRAFTFAHRZEUGTEILE 1 Feb 1972 [3 Feb 1971] 4603/72 Heading B8T In a bayonet catch closure the spaces defined by the upper and lower parts 1, 2 are separated by an intermediate plate 3 having a sealing ring 4. In Fig. 3 (not shown) a compression spring abuts against the part 1 and the plate 3. In Fig. 4 (not shown), the intermediate plate has a sealing ring with a vertical flange which fits between flanges on the closure parts. The plate 3 may be made of a resilient sealing material, the ring 4 being omitted. The bayonet catch members 6<SP>1</SP> extend through cut-outs 2<SP>11</SP> in the part 2 and are carried on a member 6 supported by a spring 7.
Patent GB-1462385-A (GB)
Title: Manufacture of hollow metal bodies
IPC: B22F9/14
Filed: 1974-01-31
Abstract: 1462385 Hollow metal particles TOYO KOHAN CO Ltd 31 Jan 1974 04614/74 Headings C7D and C7X Hollow metal bodies, e.g. of Fe, Al, Cu, Ni or their alloys, are made by contacting flat molten metal bodies with a liquid which evaporates below the temperature of the molten metal. The liquid may be water and/or an organic solvent. The melt may be formed by (1) gradual melting of a rod or granular member which may be vibrated or rotated using an electric or plasma arc or a gas flame, (2) dispersing a melt optionally with the aid of pressure through holes in a rotating or otherwise moving container or (3) letting a melt fall on to or through means which disperses it e.g. a cylinder, disc or cone rotor with an irregular surface; a fluid stream; a magnetic field or a deflecting plate which may vibrate or rotate. In case (1) an elongate non- consumable electrode of Ti or C may be used to form an arc with a metal rod which is reciprocated across its length. Methods (2) and (3) may be used in combination and the dispersing means in (3) may be above or in the liquid. A deflection plate may be provided which reduces the velocity of molten metal directed into the liquid, while simultaneously flattening the melt. Baffles, e.g. a lattice of rods or plates may be placed in the liquid to prevent excessive flow build-up. A shield gas, e.g. Ar, may be used. After treatments for the hollow metal include annealing, decarburizing and deoxidizing in a reducing atmosphere. In the case of cast iron the metal is coated with Fe 2 O 3 , heated at 1000C to decarburize followed by reduction in H2 at 800C.
Patent GB-580373-A (GB)
Title: Improvements in shelters suitable for the protection of passenger queues
IPC: E04H1/12
Filed: 1944-03-13
Abstract: 580,373. Shelters. GLOVER, C. W. March 13. 1944, No. 4663. [Class 20 (i)] A bus shelter comprises pairs of concrete frame ribs 1, 2 anchored to the ground, opposite ribs being joined by a tiebolt 3, side railings 6 passing through the ribs and precast concrete slabs 7 beneath the railings. More than one railing may be provided on each side and the space between the uppermost side railing. and the roof is left open. Concrete purlins 8 support a corrugated asbestos cement roof 4 and gutters 5. Columns 9 support a central hand-rail 19. The ribs are anchored to the ground by embedding them in holes in the ground with concrete or by angle cleats bolted to the ribs and to the pavement. Fig. 3 shows a shelter having one series of frame ribs.